Hi,

I'm trying to use your project using gradle.

However using compile 'com.jmedeisis:draglinearlayout:1.1.0' in gradle doesn't work. Is that normal? Thanks in advance.

EDIT: my bad, succeed with adding allprojects { repositories { jcenter() } }

Hey! Awesome project! I'm working on this issue. It's mostly just adding a bunch of switch statements :/. Is this a thing you want? https://github.com/cmcneil/DragLinearLayout

Is there a way to get a onDragStopListener? I need to detect when the view is placed in the right position? because if I use setOnViewSwapListener(); the order of the views in the draglinearlayout is not committed.

if someone changes the order of the views. I need to read the correct order of the views so I can handle code for each view.

view1.print("1"); view2.print("2"); view3.print("3");

after changing the order 2 becomes 3 and 3 becomes 2. this is what I need to call

view1.print("1"); view3.print("3"); view2.print("2");

How can I do this?

Thanks to that we don't have to slowly move finger to dragg element.

When we move really fast finger scroll view will take this touch and drag will be canceled.

Hi there, I wonder say first of all thank you for your amazing job, is really useful. My issue is about, how can I get the child position after drag and drop few times the picture inside the container (Custom View)?

I need to passing the uri of each image after the user have swapped all the pics to another activity, but I couldn't find a solution.

Could you help me please.

Thanks for you help

Hi guys,

So I'm opening a new issue as asked in the last one.

Using android studio at the moment, trying to use your library without using compile 'com.jmedeisis:draglinearlayout:1.1.0' in the gradle file but by importing the zip file downloaded or cloned from github is not working.

When included, the project make gradle to send an error : Error:Cannot access first() element from an empty List. I can however open, build and run your project in a different android studio window, but importing it is still impossible. In my case this is preventing me to import meesec's fork as well. I'm using the build tools version 23 and am targeting the devices using API 15 or above.

Hi @justasm

it's a great work you have done, Thanks You.

I have added 4 ImageView in DragLinearLayout then after add setViewDraggable and also set setOnViewSwapListener in my App

My question is when i drag and swipe child view can i get Last Changed position with tag?

Thanks.

Hi!

Your implementation seams to be quite simple to put in place and I'd love to give it a try. However, even though I have jcenter in my project's build.gradle, and after adding compile 'com.jmedeisis:draglinearlayout:1.1.0' into my app's build.gradle, I get the following error:

Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve com.jmedeisis:draglinearlayout:1.1.0

Actually, I get many Unable to resolve dependency for errors while trying to sync my build.gradle

Has it been changed from jcenter and now uses another repository? I have the google one added as well.

An exception is thrown when add android:animateLayoutChanges="true" to DragLinearLayout:

java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.
            at android.view.ViewGroup.addViewInner(ViewGroup.java:3562)
            at android.view.ViewGroup.addView(ViewGroup.java:3415)
            at android.view.ViewGroup.addView(ViewGroup.java:3360)
            at com.jmedeisis.draglinearlayout.DragLinearLayout.onDrag(DragLinearLayout.java:447)
            at com.jmedeisis.draglinearlayout.DragLinearLayout.onTouchEvent(DragLinearLayout.java:661)
            at android.view.View.dispatchTouchEvent(View.java:7714)
            at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2210)
            at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1945)
            at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2216)
            at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1959)
            at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2216)

Hi I'm using your library.Everything working perfect,but i have one question.Is it a possible to use this librare in Listview,I mean BaseAdapter, or if i add childView programmatically? I tried SimpleAdapter and BaseAdapter,but i still can't drag and drop in listviews. thanks

Hi, I'm trying to solve this problem but I don't understand why it occurs. My aim is to save buttons's positions in SharedPreferences in order to restore their position when the App is launched the next time. When SharedPreferences are empty, the drag and drop feature works fine. Instead, when I launch again the App, after the code loads the buttons's indexes, the drag and drop feature get stuck. I can't drag buttons. It's like the buttons are not set as draggable. Any solution? Thanks.

@SuppressLint("SetTextI18n, CommitPrefEdits")
public class MainActivity extends AppCompatActivity {

    SharedPreferences SP;
    SharedPreferences.Editor mEditor;
    DragLinearLayout dragLinearLayout;
    Button mButton, mButton2, mButton3, mButton4;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        SP = PreferenceManager.getDefaultSharedPreferences(getBaseContext());
        mEditor = SP.edit();

        dragLinearLayout = (DragLinearLayout) findViewById(R.id.container);

        mButton = (Button) findViewById(R.id.button);
        mButton2 = (Button) findViewById(R.id.button2);
        mButton3 = (Button) findViewById(R.id.button3);
        mButton4 = (Button) findViewById(R.id.button4);

        for(int mInt = 0; mInt < dragLinearLayout.getChildCount(); mInt++) {
            View mChild = dragLinearLayout.getChildAt(mInt);
            dragLinearLayout.setViewDraggable(mChild, mChild);
            dragLinearLayout.removeView(mChild);
            switch (mChild.getId()) {
                case R.id.button:
                    dragLinearLayout.addDragView(mButton, mButton, SP.getInt(Integer.toString(mButton.getId()), 0));
                    break;
                case R.id.button2:
                    dragLinearLayout.addDragView(mButton2, mButton2, SP.getInt(Integer.toString(mButton2.getId()), 1));
                    break;
                case R.id.button3:
                    dragLinearLayout.addDragView(mButton3, mButton3, SP.getInt(Integer.toString(mButton3.getId()), 2));
                    break;
                case R.id.button4:
                    dragLinearLayout.addDragView(mButton4, mButton4, SP.getInt(Integer.toString(mButton4.getId()), 3));
                    break;
            }
        }

        dragLinearLayout.setOnViewSwapListener(new DragLinearLayout.OnViewSwapListener() {
            @Override
            public void onSwap(View firstView, int firstPosition, View secondView, int secondPosition) {
                mEditor.putInt(Integer.toString(firstView.getId()), secondPosition).apply();
                mEditor.putInt(Integer.toString(secondView.getId()), firstPosition).apply();
            }
        });

    }
}

<?xml version="1.0" encoding="utf-8"?>
<com.jmedeisis.draglinearlayout.DragLinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/container"
    android:paddingTop="20dp"
    android:gravity="center_horizontal">

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Button 1"
        android:id="@+id/button"
        android:layout_alignParentTop="true" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Button 2"
        android:id="@+id/button2"
        android:layout_below="@+id/button"
        android:layout_centerHorizontal="true" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Button 3"
        android:id="@+id/button3"
        android:layout_below="@+id/button2" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Button 4"
        android:id="@+id/button4" />
</com.jmedeisis.draglinearlayout.DragLinearLayout>

It almost seems impossible to scroll up/down if this is nested in a scroll view? Is it just the nature of this library or is there a way to achieve scrollability and dragability at the same time?

Hi

Edit :

The issue is ( The DragLinearLayout doesn't work with ScrollView )

I am adding ImageViews programatically, but the images can barely drag. it require very long press, sometimes it works and sometimes doesn't.

this is the adding function

Java

private void appendImageToLinearLayout(DragLinearLayout layout,
                                       ParseFile parseFileImage,
                                       int w, int h,
                                       boolean fullWidth,
                                       boolean isPostImage,
                                       final int position)
        throws ParseException, IOException {

    ImageView imageView= new ImageView(this);
    //imageView.setBackgroundResource(R.drawable.ic_action_search);
    imageView.setImageBitmap(

            ImageTools.
                    getBitmapFromUri(Uri.fromFile(
                            parseFileImage.getFile()),
                            this, fullWidth
                    )
    );

    // params
    //DragLinearLayout.LayoutParams viewParamsCenter =
            new DragLinearLayout.LayoutParams(
                    w,
                    h);
    //viewParamsCenter.gravity = Gravity.CENTER_HORIZONTAL | Gravity.RIGHT;

    //imageView.setLayoutParams(viewParamsCenter);
    imageView.setId(position);
    imageView.setContentDescription(imageList.get(position).getObjectId());
    layout.addDragView(imageView, imageView);

    //layout.setViewDraggable(imageView, imageView);

    if(isPostImage){

        imageView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //showImageFullScreen(position);
                Toast.makeText(EditPostActivity.this, "clicked " + v.getId(), Toast.LENGTH_SHORT).show();
            }
        });
    }
}

XML

<ScrollView
    android:id="@+id/llCanvusContainer"
    android:layout_width="0dp"
    android:layout_height="0dp"
    android:layout_marginTop="8dp"
    android:background="@android:color/white"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/switchIsPublic">

    <com.jmedeisis.draglinearlayout.DragLinearLayout
        android:id="@+id/llCanvus"
        style="@style/Gallery19crollbarStyle"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="16dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/switchIsPublic" />

</ScrollView>

The images show correctly, but the dragging doesn't work correctly.

#note: the drag and drop works fine when I remove the ScrollView

It would be nice to be able to make views which are currently draggable non-draggable. Maybe like this:

Current: public void setViewDraggable(View child, View dragHandle) Possibe: public void setViewDraggable(View child, View dragHandle, boolean isDraggable)

The scrolling goes a bit crazy when the DragLinearLayout is nested within a few layouts within the ScrollView, rather than the LinearLayout being the child of a ScrollView.

This fixes the problem by getting the top of the LinearLayout relative to the ScrollView, rather than just the top relative to the DragLinearLayout's parent.